Enhance your fastening projects with our Button Head Socket Cap Screw. Made from durable steel with a thermal black oxide finish, these screws are designed for lasting durability and a sleek appearance. With a thread size of 4-40 and a length of .1875 inches, they are perfect for a variety of applications. Featuring a hex socket drive type, installation is easy and secure. Rest assured, our screws are RoHS compliant, meeting strict environmental standards. Upgrade your toolbox with these high-quality fasteners today.